Reviews for Google Calendar - Quick Access
1 review for this add-on
Rated 5 out of 5 stars
Google Calendar doesn't show up correctly. Every polices are messed up.
Edit : Finally found the issue, it's a conflict with the extension Dark Reader causing overlapping fonts.
As the description states, this simple extension only redirects you to Google Calendar, it cannot render a page, which is the built-in browser's job, better to check your setup.
To create your own collections, you must have a Mozilla Add-ons account.